mirror of https://github.com/helm/helm
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
127 lines
2.9 KiB
127 lines
2.9 KiB
/*
|
|
Copyright The Helm Authors.
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package getter
|
|
|
|
import (
|
|
"bytes"
|
|
"crypto/tls"
|
|
"io"
|
|
"net/http"
|
|
|
|
"github.com/pkg/errors"
|
|
|
|
"helm.sh/helm/v3/internal/tlsutil"
|
|
"helm.sh/helm/v3/internal/urlutil"
|
|
"helm.sh/helm/v3/internal/version"
|
|
)
|
|
|
|
// HTTPGetter is the default HTTP(/S) backend handler
|
|
type HTTPGetter struct {
|
|
opts options
|
|
}
|
|
|
|
//Get performs a Get from repo.Getter and returns the body.
|
|
func (g *HTTPGetter) Get(href string, options ...Option) (*bytes.Buffer, error) {
|
|
for _, opt := range options {
|
|
opt(&g.opts)
|
|
}
|
|
return g.get(href)
|
|
}
|
|
|
|
func (g *HTTPGetter) get(href string) (*bytes.Buffer, error) {
|
|
buf := bytes.NewBuffer(nil)
|
|
|
|
// Set a helm specific user agent so that a repo server and metrics can
|
|
// separate helm calls from other tools interacting with repos.
|
|
req, err := http.NewRequest("GET", href, nil)
|
|
if err != nil {
|
|
return buf, err
|
|
}
|
|
|
|
req.Header.Set("User-Agent", version.GetUserAgent())
|
|
if g.opts.userAgent != "" {
|
|
req.Header.Set("User-Agent", g.opts.userAgent)
|
|
}
|
|
|
|
if g.opts.username != "" && g.opts.password != "" {
|
|
req.SetBasicAuth(g.opts.username, g.opts.password)
|
|
}
|
|
|
|
client, err := g.httpClient()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
resp, err := client.Do(req)
|
|
if err != nil {
|
|
return buf, err
|
|
}
|
|
if resp.StatusCode != 200 {
|
|
return buf, errors.Errorf("failed to fetch %s : %s", href, resp.Status)
|
|
}
|
|
|
|
_, err = io.Copy(buf, resp.Body)
|
|
resp.Body.Close()
|
|
return buf, err
|
|
}
|
|
|
|
// NewHTTPGetter constructs a valid http/https client as a Getter
|
|
func NewHTTPGetter(options ...Option) (Getter, error) {
|
|
var client HTTPGetter
|
|
|
|
for _, opt := range options {
|
|
opt(&client.opts)
|
|
}
|
|
|
|
return &client, nil
|
|
}
|
|
|
|
func (g *HTTPGetter) httpClient() (*http.Client, error) {
|
|
transport := &http.Transport{
|
|
DisableCompression: true,
|
|
Proxy: http.ProxyFromEnvironment,
|
|
}
|
|
if (g.opts.certFile != "" && g.opts.keyFile != "") || g.opts.caFile != "" {
|
|
tlsConf, err := tlsutil.NewClientTLS(g.opts.certFile, g.opts.keyFile, g.opts.caFile)
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "can't create TLS config for client")
|
|
}
|
|
tlsConf.BuildNameToCertificate()
|
|
|
|
sni, err := urlutil.ExtractHostname(g.opts.url)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
tlsConf.ServerName = sni
|
|
|
|
transport.TLSClientConfig = tlsConf
|
|
}
|
|
|
|
if g.opts.insecureSkipVerifyTLS {
|
|
transport.TLSClientConfig = &tls.Config{
|
|
InsecureSkipVerify: true,
|
|
}
|
|
|
|
}
|
|
|
|
client := &http.Client{
|
|
Transport: transport,
|
|
Timeout: g.opts.timeout,
|
|
}
|
|
|
|
return client, nil
|
|
}
|